From: Stephen Hemminger <shemminger@vyatta.com>
To: Patrick McHardy <kaber@trash.net>
Cc: netdev@vger.kernel.org
Subject: [PATCH 2/2] macvlan: propogate mtu changes
Date: Wed, 29 Oct 2008 12:59:12 -0700 [thread overview]
Message-ID: <20081029125912.002dbe9d@extreme> (raw)
In-Reply-To: <20081029125343.695eeb3c@extreme>
If MTU of underlying real device is changed, propogate up to macvlan
pseudo devices.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
--- a/drivers/net/macvlan.c 2008-10-29 09:53:00.000000000 -0700
+++ b/drivers/net/macvlan.c 2008-10-29 12:58:40.000000000 -0700
@@ -537,6 +537,19 @@ static int macvlan_device_event(struct n
list_for_each_entry_safe(vlan, next, &port->vlans, list)
macvlan_dellink(vlan->dev);
break;
+ case NETDEV_CHANGEMTU:
+ list_for_each_entry(vlan, &port->vlans, list) {
+ int err, oldmtu = vlan->dev->mtu;
+
+ err = dev_set_mtu(vlan->dev, dev->mtu);
+ if (err) {
+ list_for_each_entry_continue_reverse(vlan,
+ &port->vlans,
+ list)
+ dev_set_mtu(vlan->dev, oldmtu);
+ return notifier_from_errno(err);
+ }
+ }
}
return NOTIFY_DONE;
}
next prev parent reply other threads:[~2008-10-29 19:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-29 19:53 [PATCH 1/2] macvlan: add support for ethtool get settings Stephen Hemminger
2008-10-29 19:59 ` Stephen Hemminger [this message]
2008-10-29 21:02 ` [PATCH 2/2] macvlan: propogate mtu changes Patrick McHardy
2008-10-29 21:05 ` Patrick McHardy
2008-10-29 21:05 ` David Miller
2008-10-29 21:06 ` Patrick McHardy
2008-10-29 21:01 ` [PATCH 1/2] macvlan: add support for ethtool get settings Patrick McHardy
2008-10-29 22:32 ` David Miller
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